Compressed air stopcock, supplied unassembled so you can easily put it together yourself after delivery. Package includes 1 compressed air stopcock with 1/4 inch thread and 1 roll of sealing tape for leak-free installation. Please carefully confirm connection size and compatibility with your pneumatic system before purchasing. Quick insertion and removal design: the innovative quick-connect mechanism allows you to connect and disconnect air lines with just one hand, even when wearing work gloves. High-quality material and craftsmanship: the compressed air quick coupling is made of solid brass, offering excellent resistance to high temperature, and pressure. Easy installation and user-friendly handling: this brass compressed air quick release coupling is designed for straightforward assembly and connection without special tools. The 1/4 inch interface fits common hoses and devices, enabling quick coupling and release. Wide compatibility and versatile applications: this compressed air stopcock with 7.2 NW nozzle is compatible with many standard pneumatic tool interfaces. Ideal for grinders and other air tools, it supports use in industrial maintenance, construction, renovation projects, DIY tasks, Manufacturer: Littimoon